Federal Mogul Advanced Corona Ignition

[Arragonis]

Someone has to, surely...

[gone-ot]

...who are we believing, the "old" F-M or the "new" F-M?

..."old" F-M had credibility.

..."new" F-M does NOT.

[ConnClark]

This seems feasible to me. I would be that the 10% improvement in FE comes at high RPMs where a broader spark area will spread the flame front to all areas in the combustion chamber faster

[niky]

What's the difference between old and new?

If the discharge spreads out enough over the combustion chamber, allowing for a fuller burn, then 10% is believable, especially as they are noting in that article that the 10% is not solely because of the plugs, but it is because it allows them to run better lean burn and stratified charge.

One question is... would this be a viable substitute for ultra-high pressure direct injection in the implementation of lean-burn? I can imagine that these plugs would cost much more than conventional plugs, but at least the lower costs related to the fuel pump and the (also disposable and pretty expensive) high pressure injectors might make it a more durable and viable option.

[some_other_dave]

Originally Posted by racerc2000

... wonder what would happen if you combined these coils and those plugs? near 0% wasted fuel in combustion?

How much do you think is wasted in combustion now? 1%? 3%? 10%? 30%?

I think it may be less than 1% right now, so Magic Spark Plugs won't make much difference on their own.

-soD

[Frank Lee]

Originally Posted by Old Tele man

...who are we believing, the "old" F-M or the "new" F-M?

..."old" F-M had credibility.

..."new" F-M does NOT.

Why?

[user removed]

The amount wasted in combustion is more related to the lack of consistency in the mixture than the spark itself.
Check out Homogenous Charge Compression Ignition.

regards
Mech

[cfg83]

niky -

Originally Posted by niky

...

One question is... would this be a viable substitute for ultra-high pressure direct injection in the implementation of lean-burn? I can imagine that these plugs would cost much more than conventional plugs, but at least the lower costs related to the fuel pump and the (also disposable and pretty expensive) high pressure injectors might make it a more durable and viable option.

They did a test *with* a direct-injection engine here :

http://www.federalmogul.com/NR/rdonl...tion_FINAL.pdf

“We have already recorded fuel consumption improvements of up to 10 percent on a 1.6-liter turbocharged gasoline direct injection engine, and there is potential for further improvements,” said Kristapher Mixell, Federal-Mogul’s director, advanced corona ignition system development, Powertrain Energy. “Our Advanced Corona Ignition System is a game-changing technology that also makes other combustion improvements possible.”

CarloSW2

[FXSTi]

Quote from the linked website (Bold added for emphasis).

Federal-Mogul Corporation has developed a highly innovative Advanced Corona Ignition System (ACIS) for spark plugs, the result is increased fuel consumption and lower emissions.

Kirk

[niky]

That's a typo. The real data is in the quote cfg83 provided.

Originally Posted by cfg83

They did a test *with* a direct-injection engine here

CarloSW2

I realize that. But the question still stands.

If it allows a smaller shot of fuel at the same injection pressures because of better burning, would it allow a lower pressure injector to achieve the same lean burn that a high pressure inejctor achieves without the plug?

While this would not give greater economy overall, it might allow for greater durability and lower upfront costs for ultra lean-burn engines.